The fan leaves of portions looks like it could be mildew, but if u had it you will know 100% lol.. Theres a very distint difference from THC and mold.. If it blows of easy, your bud is shit, but if it does not, you have some fine quality THC that anyone will be happy to smoke with u.... If it is mold, and its must be bad that your plants are pritty sick and production therfor is dormat, should just harvest then, but thats your call, i dont know the fine details... Otherwise, hope its not, an best of luke curing.